Door viewer cover



FIG. 1 is a perspective view of a door viewer cover showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof with a door and viewer shown in dotted lines for illustrative purposes only, and form no part of the claimed design;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a door viewer cover, as shown and described. 